To move a suitcase up to the check-in stand at the airport a student pushes with a horizontal force through a distance of 0.95 m. If the work done by the student is 32 J, what is the magnitude of the force he exerts?

After the layers of sediment are deposited in one place, they are

1. a substance with a pH of 3 2. a substance with a pH of 10 3. a substance with a pH of 7 4. an indicator 5. a scale that represents the concentration of H30+, 0-14 A.) phenolphthalein B.) base C.) pH scale D.) neutral E.) acid

A ball rolls a hill with a constant acceleration of 3 m/s^2. how far did the ball move in that 4 s

A railroad car with mass m is moving with an initial velocity v when it collides and connects with a second railroad car with a mass of 3m, which is initially at rest.

The motion of a particle executing SHM is given by x=0.01 sin 100π (t+0.005) where x is in metre and t is second. the time period of motion in second is?

What type of wave passes through the spring in the frog toy? Why?

Different kinds of substances have different properties of metals

Magma appears to be rising underneath the mid-oceanic ridges. a. True b. False

The energy required to crack a material

two punds of water vapor at 30 psia fill the 4ft3 left chmaber of a partitioned system. The right chmaber has twice the volume of the left and is initially evacuated.